1994•University of North Texas Digital Library (University of North Texas)Open access

TRAC large-break loss-of-coolant accident analysis for the AP600 design

J.F. Lime, B.E. Boyack

Abstract

This report discusses a TRAC model of the Westinghouse AP600 advanced reactor design which has been developed for analyzing large-break loss-of-coolant accident (LBLOCA) transients. A preliminary LBLOCA calculation of a 80% cold-leg break has been performed with TRAC-PF1/MOD2. The 80% break size was calculated by Westinghouse to be the most severe large-break size. The LBLOCA transient was calculated to 92 s. Peak clad temperatures (PCT) were well below the Appendix K limit of 1478 K (2200{degrees}F). Transient event times and PCT for the TRAC calculation were in reasonable agreement with those calculated by Westinghouse using their WCOBRA/TRAC code.

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Key concepts: TRAC, Nuclear engineering, Loss-of-coolant accident, Transient (computer programming), Coolant, Environmental science, Engineering, Mechanical engineering